382 replies to this topic

[AliM]

Hi All,

so changed the engine and gearbox this weekend, the car wants to start but doesn't.  It has spark and fuel pump is fine, checked the fuel rail etc all good.

 

I have checked all 5 earth points in the TIS, cleaned everything up.  It turns over but won't start up, there is a pulsing buzz from the ECU.

 

Had a quick look on here and found the ECU earth can be a problem, we've currently got the wire from the left bank of the ECU going to a bolt on the throttle body.  Can anyone confirm if this is right?

 

any other ideas?  eeeeek

 

 

Cheers

[p4cks]

sounds suspiciously like a flat battery

[AliM]

old engine started fine yesterday off the battery, and we've just tried to jump it off my mates car, no joy.

[CocoPops]

Is there definitely fuel getting into each cylinder?

[AliM]

yep, checked.

 

if anyone is able to pop and check where their ecu earth goes to it would be much appreciated, ta.

Edited by AliM, 01 September 2013 - 03:58 PM.

[AliM]

stack is flashing 999 deg C :S

[CocoPops]

http://www.vx220.org...11-tb-problems/

Another 999 on stack

Discussion around throttle bodies and temp sensors.

[Claws]

Sounds like it thinks it is running hot *pops out to check earthing point*

[Sticky]

Have you made sure the pins on the ecu are clean? Unclip the plugs etc

[Claws]

There is currently a hurricane in my street so couldn't really have much more of a poke about as the boot lid was blowing about like mad

[christhegasman]

Is the engine main earth to chassis ok

[vocky]

 

Had a quick look on here and found the ECU earth can be a problem, we've currently got the wire from the left bank of the ECU going to a bolt on the throttle body.  Can anyone confirm if this is right?

 

 

that is not good, the tb is not really connected to a good negative source, so ensure the ecu is connected to the engine block or cylinder head

[vocky]

stack is flashing 999 deg C :S

is the temperature sensor next to exhaust manifold / thermostat housing plugged in ?

[vocky]

a good way to test the injectors is to remove the fuel rail with the injectors attached and connected, then crank the engine over for a second whilst holding a piece of cardboard below the injectors, you should get an even pattern from all four injectors

Edited by vocky, 01 September 2013 - 05:02 PM.

[fezzasus]

I got a non-starter after my SC conversion with 999 degrees when I forgot to plug the blue connector in.

[vocky]

loom of doom

[AliM]

Claws thanks for that you're a star, that's not where mine is currently. Although I don't have that C plate on mine anymore.  I assume one of the other bolts would be ok?

 

i think the sensor is in fine as it was reading normally and then changed to 999 after we checked the ECU pins

 

just having a pizza break then will try again keep em coming.

[FLD]

You're welcome to my op-com but I'm off on holiday Tuesday morning. 

[vocky]

i think the sensor is in fine as it was reading normally and then changed to 999 after we checked the ECU pins

 

 

first place to start again at, ensure there are no broken or damaged pins.

 

Just in case, the 'thicker wiring loom' ecu plug goes to the four rows of pins socket and the 'thinner wiring loom' ecu plug to the three rows of pins row socket. Easy mistake fitting them the wrong way round on the ecu.

Edited by vocky, 01 September 2013 - 05:12 PM.

[AliM]

Checked the plugs , in right way. Stack temp normal now still no start.